Disc Milling Cutter Internal Cooling Channels
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Solution Overview
Problem
Conventional disc milling cutters suffer from inefficient cooling and high coolant consumption during machining, particularly when producing long grooves or high-speed cuts, leading to premature wear and limited cutting speed.
Innovation Solution
A generatively manufactured disc milling cutter with internal cooling lubricant channels and multiple outlet openings aligned to direct cooling lubricant jets directly onto the cutting edge, supporting chip removal and cooling, and featuring a central hub for secure torque coupling and additive manufacturing for cost-effective production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional surge cooling is used with flexible hoses, then the cooling system is simple to implement, but the cooling lubricant consumption is very high and cooling effectiveness is insufficient
Solution Approach 1:
The patent implements internal cooling channels within the disc body that deliver cooling lubricant directly to the cutting edge under pressure. This hydraulic system replaces the external flexible hose arrangement, enabling precise coolant delivery with significantly reduced consumption while maintaining effective cooling at the cutting zone.
Solution Approach 2:
The cooling system transitions from an external three-dimensional arrangement with flexible hoses to an internal integrated channel structure within the disc body. This dimensional integration allows the cooling lubricant to be delivered directly at the cutting edge without the need for external routing, reducing both coolant consumption and system complexity.
2Ease of manufacture
If flood cooling with large volume flows is used, then the cooling system is simple to implement, but cooling effectiveness at the cutting edge is insufficient
Solution Approach 1:
The patent provides different cooling conditions at different locations: internal channels deliver concentrated cooling lubricant directly to the cutting edge where heat is generated, while the rest of the disc body receives minimal coolant. This localized quality approach ensures high cooling effectiveness at the critical cutting zone without requiring large volume flows throughout the entire system.
Solution Approach 2:
The pressurized internal cooling channels enable precise delivery of cooling lubricant exactly where needed at the cutting edge. This hydraulic system replaces the diffuse flood cooling approach, concentrating the coolant flow at the critical location to improve cooling effectiveness while reducing overall coolant consumption.
3Adaptability or versatility
If disc milling cutters with carbide inserts are used, then they can handle various machining tasks, but the maximum cutting speed is very limited
Solution Approach 1:
The patent implements a pressurized internal cooling system that delivers cooling lubricant directly to the cutting edge under high pressure. This efficient cooling enables higher cutting speeds by preventing overheating and premature wear, thereby increasing the maximum cutting speed while maintaining the versatility of carbide insert milling cutters.
Solution Approach 2:
The patent changes the cooling parameter from conventional surge cooling with large volume flows to pressurized internal cooling with targeted delivery. This parameter change in the cooling system enables higher cutting speeds by maintaining optimal temperature at the cutting edge, thus increasing the maximum cutting speed capability while preserving machining versatility.
4Reliability
If internal cooling channels are implemented in disc milling cutters, then cooling effectiveness is improved, but manufacturing complexity increases
Solution Approach 1:
The patent merges the cooling lubricant supply system with the disc body structure itself. The internal cooling channels are integrated directly into the disc body, combining the structural component with the cooling function. This merging reduces the number of separate components and simplifies manufacturing compared to implementing separate external cooling systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances cutting speed and extends cutting edge service life by ensuring effective cooling and chip removal, while enabling complex geometries and thin disk body production that conventional methods cannot achieve.
Implementation Method 1
Several internal cooling lubricant channels run in the disc body, which have two or more outlet openings in the area of each cutting edge
Implementation Method 2
The outlet openings are aligned in such a way that a cooling lubricant jet that emerges from the cooling lubricant channel can be directed onto the cutting edge
Implementation Method 3
When machining workpieces, the cutting tools are cooled to prevent overheating and thus premature wear of the cutting edge
Implementation Method 4
supporting chip removal and cooling
Data Source
Figure 1
Figure 2
AI summary
The invention relates to a side milling cutter (1) which comprises a disk body (11) with a central hub (12) for accommodation in a milling drive, and a plurality of cutters (21) which are arranged on the outer periphery thereof. A plurality of inner cooling lubricant channels (3) extend in the disk body (11), said channels having two or more outlet openings (31) in the area of each cutter (21). Said outlet openings (31) are oriented such that a cooling lubricant jet (K) which exits from the cooling lubricant channel (3) can be directed to the cutter (21). The invention also relates to a production method for the side milling cutter (1).